EP 2473834 B1 20210908 - ILLUMINATION SPECTRUM RECOVERY
Title (en)
ILLUMINATION SPECTRUM RECOVERY
Title (de)
LICHTSPEKTRUMSWIDERHERSTELLUNG
Title (fr)
RÉCUPÉRATION DE SPECTRE D'ÉCLAIRAGE
Publication
Application
Priority
- AU 2009904230 A 20090903
- AU 2010900383 A 20100201
- AU 2010001000 W 20100806
Abstract (en)
[origin: WO2011026167A1] The disclosure concerns processing of electronic images, such as hyperspectral or multispectral images. Processing of the images includes object recognition and image enhancement in a way that harnesses the information available from the image based on the wavelength indexed spectral data these types of images provide. Illumination spectrum of such an image is estimated (Fig. 21) using a cost function based on a dichromatic reflection model and a constraint term. This method may be performed on sub-images of the image. A method for selecting these sub-images (Fig. 23) is also disclosed. A method of determining photometric parameters of the image given the estimated illumination spectrum (Fig. 22) is also disclosed.
IPC 8 full level
G01N 21/25 (2006.01); G01N 21/55 (2014.01); G06K 9/00 (2006.01); G06K 9/46 (2006.01); G06T 5/00 (2006.01); G06T 7/90 (2017.01); G06V 10/60 (2022.01); H04N 1/60 (2006.01)
CPC (source: EP US)
G06T 7/90 (2016.12 - EP US); G06V 10/60 (2022.01 - EP US); G06V 40/10 (2022.01 - EP US); H04N 1/6086 (2013.01 - EP US); G06T 2207/10024 (2013.01 - EP US); G06T 2207/20021 (2013.01 - EP US); G06T 2207/30201 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011026167 A1 20110310; AU 2010291852 A1 20120412; AU 2010291852 B2 20150122; CN 102597744 A 20120718; CN 102597744 B 20160907; EP 2473834 A1 20120711; EP 2473834 A4 20170329; EP 2473834 B1 20210908; US 2012183213 A1 20120719; US 9087266 B2 20150721
DOCDB simple family (application)
AU 2010001000 W 20100806; AU 2010291852 A 20100806; CN 201080049275 A 20100806; EP 10813148 A 20100806; US 201013394094 A 20100806